Shoe upper



FIG. 1 is a top and right front perspective view of a shoe upper showing my new design;

FIG. 2 is a right side elevational view thereof, the left side being a mirror image thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof.

The broken line showings of a shoe sole in all figures are environmental only and form no part of the claimed design. 

The ornamental design for a shoe upper, as shown and described. 